Nope, ‘mommy brain’ doesn’t sap attention

In a new test of whether “mommy brain” affects women’s focus, mothers performed equally as well or better on attention-related tasks compared with women who had never been pregnant or had children.

“Mommy brain” is a long-held perception that mothers are more forgetful and less attentive.

“In most studies, however, attention and memory tests are given to mothers very early postpartum,” says Valerie Tucker Miller, a PhD student in Purdue University’s anthropology department.

“Overall, moms did not have significantly different attention than non-mothers…”

“There are few issues with that,” she adds. “When you first have a child, you have a cascade of hormones and sleep deprivation that might be affecting attention and memory processes in the brain.”

In the study testing for “mommy brain,” Miller used a revised version of the Attention Network Test (ANT), called the ANT-R, to compare reaction times among 60 mothers, all of whom were at least one year postpartum, and 70 non-mothers.

The results appear in the journal Current Psychology.

“For this particular study, we recruited moms who were past that first year postpartum because we wanted to see the long-term effects of maternity,” she says.

“Overall, moms did not have significantly different attention than non-mothers, so we did not find evidence to support ‘mommy brain’ as our culture understands it. It’s possible, if anything, that maternity is related to improved, rather than diminished, attentiveness.”

The mixed-method study may be the first to investigate the long-term effects of biological motherhood on real-life attention network functioning, says coauthor Amanda Veile, an assistant professor of anthropology.

Researchers used a seven-point scale to measure participants’ responses to survey questions such as, “How sleepy do you feel?” and “How do you think your attentiveness is?” Women’s perceived attention functioning was strongly associated with their tested attention scores, regardless of motherhood status, Veile says.

“We also believe that ‘mommy-brain’ may be a culture-bound phenomenon…”

“This means that women have accurate awareness of their cognitive state, and that their concerns regarding their perceived attentional functioning should be taken seriously,” she says.

“We also believe that ‘mommy-brain’ may be a culture-bound phenomenon, and that mothers will feel the most distracted and forgetful when they feel stressed, overextended, and unsupported. Unfortunately, many US moms feel this way, especially now in the midst of economic and political instability and pandemic.”

During the computer test, a cue box flashes for 100 milliseconds in one of two possible locations where a target image will appear on the screen. Next, an image of five arrows, each pointing left or right in consistent or conflicting directions, flashes on the screen for 500 milliseconds. Participants are then asked to press a button that corresponds to the direction of only the middle arrow.

Miller says the test measures response times and provides scores for the three main networks of attention: The alerting network helps the brain prepare for incoming stimuli; the orienting network directs the brain’s attention to something new; and the executive control network helps resolve conflicting information.

Mothers in the study were, on average, 10 years older than non-mothers. Even after controlling for age, however, the researchers found that mothers had similar alerting and orienting attention, and better executive control attention, compared to non-mothers.

“Moms were not as distracted by those outside, incongruent items,” Miller says. “It makes perfect sense that moms who have brought children into this world have more stimuli that needs to be processed to keep themselves and other humans alive, and then to continue with all the other tasks that were required before the children.”

Heightened attention isn’t always a good thing. It could become amplified with feelings of stress and isolation, which many US moms experience, causing them to develop anxiety, Veile says.

“We plan to do cross-cultural investigations to further examine how narratives of motherhood and social support are associated with maternal tested attention and well-being around the world,” she says.

Lisa A. VanWormer, an associate professor of psychology at St. Norbert College, is also a coauthor. Purdue and the University of Florida supported the research.

Source: Purdue University

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